Alan Cooper, Cécile Mourer Chauviré, Geoffrey Chambers, Arndt von Haeseler, Allan Wilson and Svante Pääbo investigated the evolutionary relationships among some extinct and living species of flightless birds using tissue samples from museums and from living birds. This is an example of discovery-based science.
Answer the following statement true (T) or false (F)
True
You might also like to view...
Why is it necessary to take special safety precautions when using radioactivity?
A. Radioactive substances will ionize cells. B. Radioactive substances have the potential to cause damage to living cells. C. Radioactive substances decay. D. Radioactive substances will perforate plasma membranes.
Plants maintain higher levels of phytochrome at their growing tips where phytochrome plays important roles in growth responses to light. Phytochrome levels are also high in areas of the plant that are "greening". What does this suggest about the role of phytochrome in these "greening" zones?
A. Phytochrome is absorbing green wavelengths of light. B. In these areas, phytochrome is the first step in the electron transport chain of photosynthesis. C. Phytochrome is facilitating the transcription and translation of photosynthesis related proteins. D. Phytochrome is facilitating the migration of chlorophyll pigments from other areas of the plant. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? words does the question contain and what do they mean? Gather Content · What do you already know about the role of phytochrome in plants? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Which statement is NOT true about DNA replication in prokaryotes?
A. Replication begins at a single origin of replication. B. Replication is bidirectional from the origin(s). C. Since bacterial cells replicate so rapidly, a second round of replication may begin before the first has been completed. D. Replication occurs at about 1 million base pairs per minute. E. There are many bacterial chromosomes, with replication occurring in each at the same time.
During a fermentation experiment in lab, two different samples of grape juice have been inoculated with yeast. Air has been evacuated from sample I, but not from sample II. In which sample would you predict to the greater alcohol production?
A) Similar alcohol production is expected in both samples B) Sample II C) Sample I D) This cannot be predicted based on the information provided